Lock.



vB. PHELPS.

LOCK.

(Application filed Apr. 28, 1899.)

(No Model.)

2 Sheets-Sheet 2 WITNESSES:

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BY @0MM ATTORNEY mms crans co. Horaun'em wAsumc-mn, u. c

NITED STATES PATENT OFFICE.

BYRON PHELPS, OF SEATTLE, WASHINGTON, -ASSIGrNOR OF ONE-HALF TO THEODORENELSON, OF OHIOAGO, ILLINOIS.

LOCK.

SPEGIFICA'IION forming part of Letters Patent No. 631 ,431g datedAugustl'22, 1899.

Application filed April 2 8, 1.89 9.

To all whom/fit may concern:

Be it known that I, BYRON PHELPS, a citizen of the United States,residing at Seattle, county of King, State of Washington, have inventedcertain new and useful Improvements in Locks, of which the following isa full, clear, and exact description. n My invention relates toimprovements in locks and locking latch mechanism; and my object istoimprove and simplify the construction of the same.

In the preferred embodimentzof myinvention shown in the drawings, Figurel represeuts a plan view of my lock,1parts being broken away. Fig. 2represents a horizontal section. Figs. 3 and 4 represent enlarged def.tails. Fig. 5 represents the position of the parts when the right-handspindle is locked but the other is not. Fig. 6 represents the positionof the parts when both spindles are locked. Fig. 7 represents a detacheddetail showing the manner of lockingthe latch-shoe, and consequentlyboth spindles, by one of the roll-backs. Fig. 8 is a detail of t-herollbacks.

In the above preferred embodiment of my invention A represents the frameof a lock, preferably havingintegral, hollow,transversespindle-.bearings B and C. b and c are side or escutcheon plates fittingover these spindlefbearings and relativelyv adj ustable. This lock isadapted to be inserted in a notch in the stile of a door, and the side'plates are toI clasp the sides of the stile and retain the lock inplace. This general construction is broadly claimed in my formerapplication, renewed December 5, 1898, Serial No. 698,371. D and E arein this embodiment two independent and hollow rotatable spindles, heldin the spindle-bearings preferably by a pinfandgroove construction, asshown in Figs. 1 and 2. The spindle D has a slot d, Figs. 5 and 6, andspindle E a slot e, Fig. 7, through both sides of the same at the innerend thereof.

Held loosely within the end of the spindle E is a roll-back G, havingthe wings thereof located in the slot e, as shown in Fig. 8. Theroll-backpreferably is just large enough to snugly fit within thespindle, so that it can be easily moved therein and in said slot.

F is a second rollaback held within the end Serial No. 714,831. (Nomodel.)

of the spindle D and having its wings located ini the slots d in thespindle in the same manner as in Fig. 7.

The central part of the 'roll-back G is prefa erably a little largerthan the opening in the end of the spindle D, (see Fig. 2,) so thatthere will be no danger of said roll-back passing into the spindle D,and thereby becoming disconnected with spindle E.

' H is a latch bolt or head, and 71, is a latchshoe provided with ayoke, the legs h and h2 of which embrace both spindles, as clearly shownin Figs. 1 and 7. Each of the legs of the shoe has a lip hwhich lips liebehind the wings of the roll-back when in their proper position and arekept in engagement therewith by the spring h4,which presses the shoe andlatch forward. It will be obvious that when in the position shown inFig. l the latch may be drawn back by a rotation of either spindle ineither direction.

b' is a slot in each side of the frame, into which the wings of theroll-back F fit when this roll-back is moved in the slots d of thespindle into the position shown in Fig. 5. c

When in this position, the spindle D is prevented from operating thelatch mechanism, but the spindle E can still be rotated to throw backthe latch. To prevent either spindle from operating the latch mechanism,I preferably lock both spindles from rotation by bringing the shoe androll-back G into engagement, in this embodiment the roll-back being.moved to the left into the position shown inl Fig. 6, when the wingsthereof enter the recesses h5 h5 in the shoe, as shown in Fig. 7,thereby locking the shoe, and consequently both spindles, from rotationin either direction. To accomplish these different locking movements, Ihave provided a locking mechanism which extends outside of the lock onthe same side as one of the spindles, and in this embodiment I haveshown it as partly inclosed Within the spindle E.

K is a lock-rod, preferably angular, but having a smaller roundedportion k. The roll-back F has an angular opening f, Fig. 8,therethrough, so that the angular portion of the rod will just fittherein. The roll-back G, on the contrary, has an aperture large enoughso that it can rotate independently ofl IOO the rod. The roll-back F isinserted on the rod to the position shown in Fig. 2, and the rod is thengiven a slight turn, which will bring it into the position shown indotted lines in Fig. 8, the corners of the rod abutting gainst the sidesof the roll-back, so that by ne longitudinal movementof the rod ineither lirection the roll-back will be carried along .vith it. The rodwill, however, move freely in a longitudinal direction without movingroll-back G. L is a sleeve longitudinally fmovable inside of spindle Eand is pressed forward by the spring l inside of the left-hand knob. Apin Z is inserted in the hole l2, Fig. 3, and passes through a slot Z3(shown in dotted lines, Figs. 5 and 6) and projects therefrom into acam-slot in a finger-piece M, rotatable outside of the spindle E. 7a',Fig. 3, is a pin on the lock-rod K, passing through a transverse slot inthe sleeve D. By the rotation of the linger-piece the sleeve L, andconsequently the lock-rod K, will be moved longitudinally in onedirection or the other and will carry the roll-back F along with it. Itwill be observed from Fig. 5 that the cam-slot in the finger-piece has agreater throw in one direction than in the other. Consequently when thefinger-piece is rotated from the position shown in Fig. l to that shownin Fig. 5 the roll-back F will be carried into the position in whichonly spindle D is locked, and when further rotated into the positionshownin Fig. G the said roll-back will be carried to the left, not onlyas far as the former position shown in Fig. 1, but farther to the left,pushing the roll-back G ahead of it into the recesses in the shoe, asshown in Fig. 6, thus looking both spindles. XVhen the linger-piece isthen moved in the opposite direction to the position shown in Fig. 1,the roll-back G might not move out of the recess. I have thereforeprovided an inner 'spring-pressed means to keep the same normally out ofengagement with the shoe, consisting in this embodiment of an innerspring-pressed thimble N. This thiinble has a slot n, into which a pinZA1 on the sleeve L projects to prevent disengagement of the parts. Bythe rotation of the finger-piece in one direction the opposite spindlealone is locked, and by a further movement of the linger-piece in thesame direction both spindles are locked, preventing the retraction ofthe latch-bolt, and consequently preventing the door being opened eitherby a key or otherwise.

Some of the above features are broadly claimed in my formerapplications, renewed December 5, 1898, Serial No. 698,371, and SerialNo. 699,891, tiled December 21, 1898.

It will be obvious that many changes may be made in the constructionherein disclosed without departing from the spirit of my invention.

What I claim is- 1. In a lock in combination, latch mechanism, a spindleextending thereto to operate the same, a second spindle on the oppositeside of said lock, and means operative from the same side ot said lockas said lirst spindle and adapted to prevent said second spindle fromoperating said latch mechanism, but not said first spindle, or toprevent either spindle operating the same.

2. In a lock in combination, latch mechanism embracing a latch bolt orhead, a plurality of rotatable spindles, bolt-actuating means adapted tobe operated thereby to move said bolt, mechanism to lock one 0f saidspindles against rotation but not the other, operative from the sameside of said lock as said unlocked spindle, or to lock both spindles.

3. In a lock in combination, latch mechanism, a plurality of rotatablespindles extending to said mechanism to operate the same, one of saidspindles being hollow, locking means extending into said spindle andadapted to lock the other of said spindles against rotation but not saidfirst spindle, or to lock both said spindles, and a device adapted to beoperated by the fingers extending outside of said first spindletransversely of the axis thereof and con nected with said locking meansto operate the same.

4. In alock in combination, a latch-bolt, a plurality of rotatablespindles, bolt-actu ating means adapted to be operated thereby to movesaid bolt, a movable linger-piece, and mechanism controlled therebyadapted to lock one of said spindles from rotation but not the other,when said tinger-piece is moved in one direction, and to lock both saidspindles when said finger-piece is moved farther in the same direction.

5. In a lock in combination, latch mechanism, a rotatable spindleextending thereto on one side thereof, a second spindle on the oppositeside thereof, a roll-back foreach spindle, and means extending outsideof said mechanism on the same side as said first spindle and adapted tomove the roll-back connected with said second spindle to lock saidsecond spindle and also adapted to further move said sccond roll-backand lock both said spindles.

6. In a lock in combination, latch mechanism, a rotatable spindleextending thereto on one side thereof, a second spindle on the oppositeside thereof, a roll-.back for each spindle, and means extending outside.of said mechanism on the same side as said first spindle and adapted tomove the roll-back connected with said second spindle to lock saidsecond spin dle, and also adapted to move the roll-back connected withsaid first spindle to lock both said spindles.

7. In a lock in combination, latch mechanism, a hollow rotatable spindleextending,

thereto on one side thereof, a second spindle on the opposite sidethereof, a slotin the end of each spindle, a roll-back in each Slot, alocking-rod within said hollow spindle rengaging the roll-back connectedwith said second spindle to move the Same longitudinally, a tingerpieceoutside of said rst spindle IOO IIO

to move said rod, said rod passing loosely through said secondroll-back, said second roll-back being spring-pressed toward said otherroll-back and adapted to be moved back- Ward against the force of saidspring to lock both said spindles from rotation.

8. In a lock in combination a latch-shoe, a roll-back, and means toengage said roll-back with said shoe and thereby lock the same.

9. In a lock incombination a latch-shoe having a recess, a spindlehaving a longitudinal slot therein, a roll-back in said slot, and meansto move said roll-back into said recess and thereby lock said shoe.

lO, In a lock in combination a spindle, a 15 back Wings into saidrecesses and thereby zo lock said shoe from retraction.

Signed at New York, N. Y., this 13th day of April, 1899.

BYRON PHELPS.

Witnesses:

EMERSON R. NEWELL, L. VREELAND.

